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ycow [4]
3 years ago
9

Given a sphere with a radius of 7.5 ft.

Mathematics
1 answer:
ad-work [718]3 years ago
3 0

Answer:

volume of the sphere is  V=1766.25 ft^{3}

Step-by-step explanation:

step:1

<u>The volume of the sphere formula is V=\frac{4 pi r^{3}  }{n}</u>

<u>step:2</u>

Given radius of the sphere r=7.5 ft

substitute given radius r=7.5 ft value in volume of the sphere formula

V=[tex]\frac{4 pi r^{3}  }{n}\\

V=\frac{4(3.14)(7.5)^{3} }{3}[/tex]

V=1766.25 ft^{3}

Final answer is V=1766.25 ft^{3}

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3 years ago
Add the following polynomial of x3+3xy-2×y2+y3,2×3-5x2y-3xy2-2y3<br>​
ANTONII [103]

The addition of the polynomial x^{3}+3xy-2xy^{2} +y^{3} with 2x^{3}-5x^{2} y-3xy^{2}-2y^{3} is  3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}.

What is a polynomial?

⇒ A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.

⇒ In the addition of polynomials, the like terms are added while in subtraction, the like terms are subtracted.

Calculation;

We have been given two polynomial which we have to add   x^{3}+3xy-2xy^{2} +y^{3} and 2x^{3}-5x^{2} y-3xy^{2}-2y^{3}

The sign after addition or subtraction will always be of the variable having more value.

(x^{3}+3xy-2xy^{2} +y^{3} )+(2x^{3}-5x^{2} y-3xy^{2}-2y^{3})

On adding like terms with each other

⇒ (x^{3} +2x^{3})+ 3xy-5x^{2} y-(2xy^{2}+3xy^{2})+(y^{3}-2x^{3})

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Hence the addition of the polynomialx^{3}+3xy-2xy^{2} +y^{3} and 2x^{3}-5x^{2} y-3xy^{2}-2y^{3} is 3x^{3}+3xy-5x^{2} y-5xy^{2}-y^{3}.

Learn more about polynomial here :

brainly.com/question/1487158

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Answer:

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Step-by-step explanation:

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3 years ago
What is the slope of a line segment PQ with coordinates P(-2.5) and Q(-1,1)? show your work.
PolarNik [594]

Answer:

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Step-by-step explanation:

<u>Given</u>

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4 years ago
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